This report examines how counterterrorism strategy relates to border security and immigration reform, and how terrorist mobility should be countered. The author argues that terrorist mobility comprises a set of problems distinct from the challenges of managing large-scale global migration.

This report examines the connections between the United States’ temporary and permanent systems of admission to the United States. It describes the goals and structure of each system, discusses the relationship between immigrant and nonimmigrant admission flows, and describes the critical data gaps that impede understanding of the underlying realities of immigration to the United States.

This policy brief examines the United States’ complex employment-based immigration system, which admits foreign workers through five permanent immigration categories and dozens of nonimmigrant visa categories for temporary workers. It evaluates the strengths and weaknesses of the current demand-driven system and offers recommendations for improvement based on this analysis.

This policy brief compares existing proposals for comprehensive immigration reform by President Bush and the 109th Congress with regard to changes to lawful permanent resident (LPR) admissions, the terms and conditions of nonimmigrant visas, and policy responses to the existing unauthorized immigrant population.

This report explores the complex issues surrounding temporary worker programs by looking at the ways in which the United States has responded to domestic labor shortages from the 1940s through the present. It examines the intent and structure of both historical and existing temporary worker programs, and raises salient policy questions that result from the analysis.

This report seeks to bring new light to the issues of migration by sea—particularly the interception and rescue of “boat people”—by synthesizing key discussion takeaways from an international forum of policymakers, international organizations, NGO representatives, and academics.

Since the September 11, 2001 terrorist attacks, the United States Department of Justice has sought to engage local police in the systematic enforcement of routine civil immigration violations, marking a sea change in immigration and local law enforcement practices. This report provides the first public glimpse of how the new NCIC policy has affected on‐the‐ ground policing strategies across the country and which immigrant groups have been most heavily impacted.

This policy brief examines the flaws in the United States’ existing employer sanctions regime and proposes six types of reform that could strengthen the system: improvements to document security, document consolidation, mandatory use of employment databases, increased enforcement staffing, a revised penalty structure, and better worksite access for investigators.

In the Spotlight

Maps of the Foreign Born in the United States

Use our interactive maps, with the latest available data, to learn where immigrant populations, by country or region of birth, live in the United States—at state, county, and metro levels. Interested in the top immigrant populations in your state or metro area? Check out our maps.

Map Immigrants by Origin and Destination

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Use this data tool—referred to as “one addictive interactive map”—to examine immigrant populations by country of origin and destination. Find out how many Americans live in Mexico, how many Ukrainians in Russia, or Filipinos in Saudi Arabia, for example.

Want the latest estimates and characteristics of unauthorized immigrants in the United States, including those potentially eligible for relief from deportation? Use this innovative data tool to get population estimates and much more—including countries of origin, recency of arrival, educational enrollment and attainment, industries of employment, incomes, English proficiency, and health care coverage—at the national level, by state, and for top counties.

Free Book Download: Diasporas: New Partners in Global Development Policy

​The volume, which examines the development impact of diasporas in six critical areas—entrepreneurship, investment in country-of-origin capital markets, heritage tourism and trade, philanthropy, volunteering, and advocacy—is now available to download for free in its entirety.

Immigration: Data Matters

This pocket guide compiles some of the most credible, accessible, and user-friendly government and non-governmental data sources pertaining to U.S. and international migration. The guide also includes additional links to relevant organizations, programs, research, and deliverables, along with a glossary of frequently used immigration terms.

Want the latest facts and data on immigrants in the United States? Search U.S. Census data on U.S. immigrants and the native born nationally and by state based on demographic, language and education, workforce, and income indicators.